Taking SCARY out of used bikes, one bike at a time.
This is where the bonding of rubber tread is coming off, and “Yes,” these need to be replaced even if the tires have little wear.
What could happen is when you take a low-angle turn (usually at fast speeds), this tread can peel off completely.
When looking for a used bike or your own. There will be a cost to replace them. An average tire will cost $30-$100 per tire, depending on the quantity.